Finding the Fourth Proportional to 1,388,918.08, 2,083,543.68 and 490,174.08
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Solution
The fourth proportional to 1,388,918.08, 2,083,543.68 and 490,174.08 is: 735,319.90
Step by Step Solution
- Step 1: Write the proportion equation
1,388,918.08 : 2,083,543.68 = 490,174.08 : x - Step 2: Convert to fraction form
1,388,918.08/2,083,543.68 = 490,174.08/x - Step 3: Cross multiply
1,388,918.08x = 2,083,543.68 × 490,174.08 - Step 4: Simplify right side
1,388,918.08x = 1,021,299,106,483.81 - Step 5: Solve for x
x = 1,021,299,106,483.81/1,388,918.08 - Step 6: Final answer
x = 735,319.90
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.